160609181 has 4 divisors (see below), whose sum is σ = 160635552. Its totient is φ = 160582812.

The previous prime is 160609139. The next prime is 160609213. The reversal of 160609181 is 181906061.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 160609181 - 2¹⁸ = 160347037 is a prime.

It is a super-2 number, since 2×160609181² = 51590618042981522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (160609381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1136 + ... + 17958.

It is an arithmetic number, because the mean of its divisors is an integer number (40158888).

Almost surely, 2^160609181 is an apocalyptic number.

It is an amenable number.

160609181 is a deficient number, since it is larger than the sum of its proper divisors (26371).

160609181 is an equidigital number, since it uses as much as digits as its factorization.

160609181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26370.

The product of its (nonzero) digits is 2592, while the sum is 32.

The square root of 160609181 is about 12673.1677571158. The cubic root of 160609181 is about 543.5716389328.

The spelling of 160609181 in words is "one hundred sixty million, six hundred nine thousand, one hundred eighty-one".